Membership
Tour
Register
Log in
Chih-Pin Pai
Follow
Person
Naperville, IL, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Method for creating a toll-free number audit tape
Patent number
6,594,659
Issue date
Jul 15, 2003
Lucent Technologies Inc.
Sheng Ling Lin
H04 - ELECTRIC COMMUNICATION TECHNIQUE